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Issue: Vol. 4268 No. 3: 17 May 2017
Type: Article
Published: 2017-05-17
DOI: 10.11646/zootaxa.4268.3.9
Page range: 439–447
Abstract views: 107
PDF downloaded: 1

A new species and a new record of the subgenus Dilatognathus Kluge 2012 (Ephemeroptera: Leptophlebiidae: genus Choroterpes Eaton, 1881) from India

Zoological Survey of India, Prani Vigyan Bhawan, M-Block, New Alipore, Kolkata- 700 053, West Bengal, India.
Zoological Survey of India, Southern Regional Centre, Santhome High Road, Chennai-600028, India.
Zoological Survey of India, Prani Vigyan Bhawan, M-Block, New Alipore, Kolkata- 700 053, West Bengal, India.
Flat 3, Gokulam Apartments, No.7, Gokulam Colony, West Mambalam, Chennai-600 033, India.
Zoological Survey of India, Prani Vigyan Bhawan, M-Block, New Alipore, Kolkata- 700 053, West Bengal, India.
Zoological Survey of India, Arunachal Pradesh Regional Centre, Itanagar-791113, Arunachal Pradesh, India.
mayfly Atalophlebiinae Dilatognathus new species new record Ephemeroptera India

Abstract

A new species belonging to the subgenus Dilatognathus of the genus Choroterpes is described based on larvae collected from Andaman and Nicobar Islands. Choroterpes (Dilatognathus) nicobarensis n. sp. can be distinguished from all other species of Dilatognathus by the absence of a tusk on the maxillary apex, has ventro-apical flange and dentiseta directed distally, as in Choroterpes other than Dilatognathus. Choroterpes (Dilatognathus) nigella (Kang & Yang 1994) is newly recorded based on larvae collected in Arunachal Pradesh, Meghalaya and West Bengal. Remarks on the evolution of the mouth apparatus of the subgenus Dilatognathus are given.

References

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